[ARC5] ARC5 Digest, Vol 137, Issue 8
Paddy Ryan
pei7cn at eircom.net
Mon Jun 8 08:19:34 EDT 2015
yeah..about the terminals..I don't think I've ever seen a receiver with the
antenna terminal post straight (all mine were shipped)..a few were
broken(the ceramic is very fragile)..some I tried to straighten in situ and
of course broke the ceramic..the terminals do not bend but the alu panel
gives slightly and then the terminals are not straight..the worst case was
the LF receiver with the 3 terminals (2 for the loop) bent..reluctantly I
had to take off the front panel and try and 'flatten' out the terminals
again ..a block of wood and some gentle tapping with a small hammer..not a
great solution and the alu is so soft it will stretch slightly and the 3
terminals will just not line up exactly the same again..I tried to think of
a few ways to flatten out the area around the terminal..maybe in a small
light vise?..also maybe a small bolt with some wide washers each side and
then tighten gently until reasonably flat..and all this because someone
didn't bother to take extra care with the packing..wrapping stuff in oodles
of bubble wrap and filling with polystyrene beads is a waste of time if the
4 corners are not re-inforced with even a triangle of strong cardboard at
each one...elementary my dear Watson..73 de Pat/EI7CN
-----Original Message-----
From: arc5-request at mailman.qth.net
Sent: Monday, June 08, 2015 1:48 AM
To: arc5 at mailman.qth.net
Subject: ARC5 Digest, Vol 137, Issue 8
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Today's Topics:
1. Transmitter Antenna Terminal Replacement (Robert Eleazer)
2. Re: Transmitter Antenna Terminal Replacement (Mike Hanz)
3. Re: Transmitter Antenna Terminal Replacement (WA5CAB--- via ARC5)
4. BC-458A Transmitter FTGH (Holzer)
5. Rules of Ware. (Kenneth G. Gordon)
6. Re: Rules of Ware. (Phillip Carpenter)
----------------------------------------------------------------------
Message: 1
Date: Fri, 5 Jun 2015 10:10:11 -0400
From: "Robert Eleazer" <releazer at earthlink.net>
To: <arc5 at mailman.qth.net>
Subject: [ARC5] Transmitter Antenna Terminal Replacement
Message-ID: <69FBC06896314AFA92446F25576BFEC6 at DH26DQ31>
Content-Type: text/plain; charset="iso-8859-1"
Speaking of straightening dents and warped panels, ya'll may recall that I
got a nice deal on a SCR-274-N transmitter with rack but that the Post
Office walloped pretty hard. I'll have to bend the front panel forward into
place and the top cover has an interesting S curve in it that will take some
figuring to correct - I think I'll use a hunk of 4X4 plus some other lumber
as a forming block.
I will have to replace entirely the antenna terminal. It got punched right
through the front face and the ceramic parts have disintegrated. I have a
gutted transmitter I can use as a donor, but how do you get the antenna
terminal off without using tin snips and destroying the front face? And how
do you get new one back on the set to be repaired? I can make a
reinforcement plate if the hole is too big and rivet it into place using
real aircraft rivets and add a note that says "certified as original by Mike
Hanz" but how does it fit on there?
Thanks,
Wayne
------------------------------
Message: 2
Date: Fri, 05 Jun 2015 10:33:50 -0400
From: Mike Hanz <aaf-radio-1 at aafradio.org>
To: Robert Eleazer <releazer at earthlink.net>, arc5 at mailman.qth.net
Subject: Re: [ARC5] Transmitter Antenna Terminal Replacement
Message-ID: <5571B34E.1000600 at aafradio.org>
Content-Type: text/plain; charset=windows-1252; format=flowed
On 6/5/2015 10:10 AM, Robert Eleazer wrote:
> Speaking of straightening dents and warped panels, ya'll may recall that I
> got a nice deal on a SCR-274-N transmitter with rack but that the Post
> Office walloped pretty hard. I'll have to bend the front panel forward
> into place and the top cover has an interesting S curve in it that will
> take some figuring to correct - I think I'll use a hunk of 4X4 plus some
> other lumber as a forming block.
>
> I will have to replace entirely the antenna terminal. It got punched
> right through the front face and the ceramic parts have disintegrated. I
> have a gutted transmitter I can use as a donor, but how do you get the
> antenna terminal off without using tin snips and destroying the front
> face? And how do you get new one back on the set to be repaired? I can
> make a reinforcement plate if the hole is too big and rivet it into place
> using real aircraft rivets and add a note that says "certified as original
> by Mike Hanz" but how does it fit on there?
First, my condolences. It is always amazing to me how many folks ship
these radios without thinking of the "high points" and suitably
cushioning them, but that's neither here nor there at this point.
If I understand you correctly, the force has pushed the antenna terminal
inward, breaking the insulator and flaring the hole, sort of like a
female engine fuel line. If the front ceramic insulator is broken,
can't you just push the terminal all the way through now? The only
thing inside the transmitter that might be interfering is the antenna
relay, and that pops off with two screws.
As to eliminating the flare damage, all you really need is to press the
inward flare down flat again (once you have removed the terminal, of
course :-) ). As long as there was no tearing of the aluminum, then you
shouldn't need a reinforcement plate. The new terminal should fit right
back in after the aluminum repair.
Heh...decals of "certified as original by Mike Hanz" are allegedly
available on ebay, but I dunno how much that buys you.
73,
Mike KC4TOS
------------------------------
Message: 3
Date: Fri, 5 Jun 2015 13:48:12 -0400
From: WA5CAB--- via ARC5 <arc5 at mailman.qth.net>
To: arc5 at mailman.qth.net
Subject: Re: [ARC5] Transmitter Antenna Terminal Replacement
Message-ID: <1ade1b.285b0087.42a33adc at cs.com>
Content-Type: text/plain; charset="US-ASCII"
Wayne,
All antenna push-post type terminals used in the Command Sets (and in most
other sets of the period) have a brass stud sticking out of the push post.
The end is turned down to form a solder post. The panel is sandwiched
between the two nesting insulators and the thing is held together by a nut
and
flat washer and sometimes a lock washer. If the nut is sealed with red
glypt,
there usually isn't a lock washer. In addition, there are three flat
washer made of either fiber or more commonly on the Command Sets, mica (I
think -
today they would probably be some plastic). On separates the inner
insulator from the brass flat washer. The other two separate the insulators
from
the aluminum panel. De-solder the antenna wire from the stud and try to get
all of the solder off of the threads. Once in a while I have had to run a
die nut onto the stud. It depends upon how sloppy the original installer
was
with the solder.
One thing that I started to comment on earlier is that when straightening a
part, you must bend the part slightly past the straight point because of
spring-back. To straighten the front panel around the hole, I would suggest
something like a piece of 1" square aluminum bar. Put it in a 4-jaw chuck
on
a lathe and use the compound to cut a very shallow male cone on the end.
Take a very short piece and cut a matching female cone on one end. I don't
know what angle to tell you to use but would guess something around 1 to 3
degrees. Anyway, sandwich the panel between the two cones and squeeze. If
you overshoot, reduce the angle, reverse the cones, and press it back the
other way. This may be a five hands job. :-) Oh, and press it flat first
and
then use the cones to get rid of the residual bend.
Robert Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480
In a message dated 06/05/2015 09:10:28 AM Central Daylight Time,
releazer at earthlink.net writes:
> Speaking of straightening dents and warped panels, ya'll may recall that
> I got a nice deal on a SCR-274-N transmitter with rack but that the Post
> Office walloped pretty hard. I'll have to bend the front panel forward
> into
> place and the top cover has an interesting S curve in it that will take
> some figuring to correct - I think I'll use a hunk of 4X4 plus some other
> lumber as a forming block.
>
> I will have to replace entirely the antenna terminal. It got punched
> right through the front face and the ceramic parts have disintegrated. I
> have a
> gutted transmitter I can use as a donor, but how do you get the antenna
> terminal off without using tin snips and destroying the front face? And
> how
> do you get new one back on the set to be repaired? I can make a
> reinforcement plate if the hole is too big and rivet it into place using
> real
> aircraft rivets and add a note that says "certified as original by Mike
> Hanz" but
> how does it fit on there?
>
> Thanks,
>
> Wayne
------------------------------
Message: 4
Date: Sun, 07 Jun 2015 20:21:17 +0200
From: Holzer <jackholzer at swissmail.org>
To: ARC5 <arc5 at mailman.qth.net>, BAswaplist <baswaplist at w6qle.net>,
"Boatanchors, list" <boatanchors at mailman.qth.net>, "Milsurplus, list"
<milsurplus at mailman.qth.net>
Subject: [ARC5] BC-458A Transmitter FTGH
Message-ID: <20150607202117.u9k8pzh807400kco at 192.168.173.81>
Content-Type: text/plain; charset=ISO-8859-1; DelSp="Yes";
format="flowed"
Free for shipping from zip code 66212: BC-458-A Western Electric
transmitter. Stock, unmodified unit in good but dirty condition.
Complete with all tubes and covers. Unit is missing the clear plastic
window for the roller inductor. This is the plain aluminum style
transmitter. From the estate of W3NIV.
Jack Holzer, W0YZS
------------------------------
Message: 5
Date: Sun, 07 Jun 2015 17:31:49 -0700
From: "Kenneth G. Gordon" <kgordon2006 at frontier.com>
To: Arc5 at mailman.qth.net
Subject: [ARC5] Rules of Ware.
Message-ID: <5574E275.4758.163EEA50 at kgordon2006.frontier.com>
Content-Type: text/plain; charset=US-ASCII
Three questions:
1) Does anyone have a list of the original "Rules of Ware"?
2) Might anyone know what ever happened to Larry Ware? I find an obit for
someone with that name on-line who was about the right age,, but don't
know if that is the same fellow.
3) Does anyone have any idea what happened to John Forster?
Ken W7EKB
------------------------------
Message: 6
Date: Sun, 7 Jun 2015 20:48:35 -0400
From: Phillip Carpenter <carpenterpa at tds.net>
To: "kgordon2006 at frontier.com" <kgordon2006 at frontier.com>
Cc: "Arc5 at mailman.qth.net" <Arc5 at mailman.qth.net>
Subject: Re: [ARC5] Rules of Ware.
Message-ID: <36DDA77D-6FED-4A50-B23D-3391778A5F65 at tds.net>
Content-Type: text/plain; charset=us-ascii
Ken,
My last email from John Forster was dated June 4, 2014.
Someone on the Forum stated that his email address doesn't work anymore.
That's all I know...
Phillip W4RTX
Sent from my iPhone
> On Jun 7, 2015, at 8:31 PM, Kenneth G. Gordon <kgordon2006 at frontier.com>
> wrote:
>
> Three questions:
>
> 1) Does anyone have a list of the original "Rules of Ware"?
>
> 2) Might anyone know what ever happened to Larry Ware? I find an obit for
> someone with that name on-line who was about the right age,, but don't
> know if that is the same fellow.
>
> 3) Does anyone have any idea what happened to John Forster?
>
> Ken W7EKB
> ______________________________________________________________
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